Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2013 7 4.  Predictions up to the next  10.0 days:

Date(NOAA-19)     Time(NOAA-19)   NOAA-19 Lat/Lon   Date(NPP)     Time(NPP)    NPP Lat/Lon    Distance (km)   Time Diff(sec)
 07/09/2013   18:38:42   (  49.95, -85.56) 07/09/2013   18:35:20    (  49.54, -88.00)  181.57            202
 07/09/2013   20:20:47   (  49.98,-111.09) 07/09/2013   20:16:50    (  49.55,-113.38)  171.47            237
 07/10/2013   07:03:03   (  23.85, -77.01) 07/10/2013   06:55:30    (  24.19, -78.75)  181.49            453
 07/10/2013   08:45:43   (  21.79,-103.05) 07/10/2013   08:37:35    (  22.14,-104.65)  169.06            488